*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f0f2f5;color:#1a1a2e}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460)}.login-card{background:#fff;border-radius:16px;padding:40px 36px;width:100%;max-width:380px;box-shadow:0 20px 60px #0000004d;text-align:center}.login-logo{font-size:2.5rem;color:#6366f1;margin-bottom:8px}.login-title{font-size:1.75rem;font-weight:700;margin:0 0 6px;color:#1a1a2e}.login-subtitle{color:#6b7280;font-size:.9rem;margin:0 0 28px}.login-form{display:flex;flex-direction:column;gap:12px}.login-input{width:100%;padding:11px 14px;border:1.5px solid #e5e7eb;border-radius:8px;font-size:.95rem;outline:none;transition:border-color .2s}.login-input:focus{border-color:#6366f1}.login-error{margin:0;padding:10px 14px;background:#fff1f2;border:1px solid #fecdd3;border-radius:8px;color:#be123c;font-size:.85rem;text-align:left}.login-btn{width:100%;padding:12px;font-size:1rem;margin-top:4px}.app{max-width:760px;margin:0 auto;padding:40px 20px}.app-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:32px}.app-title{font-size:2rem;font-weight:700;margin:0 0 6px;color:#1a1a2e}.app-subtitle{margin:0;color:#6b7280;font-size:.95rem}.section-title{font-size:.8rem;font-weight:600;color:#374151;margin:0 0 12px;text-transform:uppercase;letter-spacing:.05em}.upload-section{background:#fff;border-radius:12px;padding:24px;margin-bottom:24px;box-shadow:0 1px 4px #00000014}.upload-form{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.file-label{flex:1;min-width:200px;position:relative;cursor:pointer}.file-input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer;width:100%;height:100%}.file-label-text{display:block;padding:10px 14px;border:2px dashed #d1d5db;border-radius:8px;color:#6b7280;font-size:.9rem;background:#f9fafb;transition:border-color .2s,background .2s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-label:hover .file-label-text{border-color:#6366f1;background:#f0f0ff;color:#4f46e5}.progress-wrap{position:relative;margin-top:14px;height:8px;background:#e5e7eb;border-radius:99px;overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,#6366f1,#818cf8);border-radius:99px;transition:width .2s ease}.progress-label{position:absolute;right:0;top:-20px;font-size:.75rem;color:#6b7280;font-weight:500}.status-msg{display:flex;align-items:center;gap:6px;margin:12px 0 0;padding:10px 14px;border-radius:8px;font-size:.875rem;font-weight:500}.status-success{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}.status-error{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}.status-info{background:#f0f9ff;color:#0369a1;border:1px solid #bae6fd}.upload-hint{margin:10px 0 0;font-size:.78rem;color:#9ca3af}.files-section{background:#fff;border-radius:12px;padding:24px;box-shadow:0 1px 4px #00000014}.empty-msg{color:#9ca3af;font-size:.9rem;margin:0}.file-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.file-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:8px;border:1px solid #e5e7eb;background:#fafafa;transition:background .15s}.file-item:hover{background:#f3f4f6}.file-icon{font-size:1.2rem;flex-shrink:0}.file-name{flex:1;font-size:.9rem;color:#374151;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-actions{display:flex;gap:6px;flex-shrink:0}.btn{padding:8px 14px;border:none;border-radius:8px;font-size:.82rem;font-weight:500;cursor:pointer;transition:background .15s,opacity .15s;white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:#6366f1;color:#fff}.btn-primary:hover:not(:disabled){background:#4f46e5}.btn-logout{background:#f3f4f6;color:#374151;border:1px solid #e5e7eb;font-size:.85rem}.btn-logout:hover{background:#e5e7eb}.btn-view{background:#e0e7ff;color:#4338ca}.btn-view:hover{background:#c7d2fe}.btn-copy{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}.btn-copy:hover{background:#dcfce7}.btn-delete{background:#fee2e2;color:#b91c1c}.btn-delete:hover{background:#fecaca}.btn-back{background:#ffffff26;color:#fff;border:1px solid rgba(255,255,255,.3)}.btn-back:hover{background:#ffffff40}.btn-copy-toolbar{background:#ffffff26;color:#fff;border:1px solid rgba(255,255,255,.3);margin-left:auto}.btn-copy-toolbar:hover{background:#ffffff40}.viewer-container{display:flex;flex-direction:column;width:100vw;height:100vh;overflow:hidden}.viewer-toolbar{display:flex;align-items:center;gap:14px;padding:10px 16px;background:#1a1a2e;flex-shrink:0}.viewer-filename{color:#c7d2fe;font-size:.875rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.viewer-frame{flex:1;border:none;width:100%;background:#fff}